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QNO Model.)

- 0. T. CLOSE.

' Door-Check.

No. 227,414.. Patented May 11. 1880.

UNITED STATES PATENT OFFICE.

CHARLES T. CLOSE, OF BROOKLYN, NEW YORK.

DOOR-CHECK.

SPECIFICATION forming part of Letters Patent No. 227,414, dated May 11, 1880.

Application filed March 8, 1880.

To all whom 7.77 may concern Be it known that I, CHARLES '1. (Emma, of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Door-Checks; and I do hereby declare the following to be a full, clear, and exaet description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, refer-' ence being had to the accompanying drawings, and to letters of reference niarked thereon, which form a part of this specification.

This invention relates to an improved device for holding a window-blind or door open to any desired extent.

It consists in combining with a curved bar fastened to the frame or wall in which the blind or door is supported a spring so attached to the bar and arranged as to automatically engage with the blind or door at any desired point, and at the same time readily permit a disengagement of the blind or door.

Figure l is a view of my improved window or door check detached. Fig. 2 is aplan view of a blind or door having the check applied.

In the drawings, A represents the blind or door, B the vertical part of the frame of the window or door, and O the sill of the same.

D represents a segment or curved bar pro vided at its inner end with a perforation, 01, whereby the check can be loosely secured at said end to the sill.

E is a brace or arm extending from the concave side of the segment or arm B toward the sill, and provided with an aperture, e, whereby it also is loosely secured to the sill at a point between the end (I and the line of hinging of the blind or door.

The parts D and E are preferably cast in one piece of metal.

F represents a flat spring secured to the under side of the arm E, arranged to rest at its free end upon the sill of a window or the fioor of a room, and to thrust the check upward.

The curved arm D is provided with a series of notches or recesses, (1 d, which engage with the blind or door at its lower edge.

(No model.)

The operation of my improved check will, be

readily understood from the drawings and foregoing description.

When the blind or door is shut the check is thrust upward by the spring F to its highest position. hen it is desired to partly open the window or door it is turned upon its hinge sufficiently far to permit the bottom to engage with that notch d arranged to hold it at the desired position, the spring tending to prc serve a constant engagement between the door and check. When it is desired to hold the window or door entirely open it is turned until it has passed the end d of the check, when the check will immediately be forced upward by the spring, and will operate to prevent the return of the blind until the check is pressed down by hand.

I am aware that a curved notched bar attached in a fixed position upon the sill of a window or the floor of a house has been used in combination with a vertically-slidin g springlatch attached to the door or blind; but my device possesses many advantages over such construction as regards simplicity of construction, economy, ease of application, and certainty of operation.

What I claim is-- 1. In a door-check, the combination, with the notched curved arm D and arm E, adapted to be loosely secured to the sill, of the spring F, substantially as and for the purpose set forth.

2. In a door-check, the combination, with the spring F, of the arm E, adapted to be loosely attached to the sill, and the notch d curved bar-J], adapted to be loosely attached to the sill, and provided with portion d extending beyond the arm E, and adapted to engage with the blind when said blind is fully opened, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand.

CHARLES T. CLOSE. Witnesses:

PAUL BEAUMONT, v GEO. T. CLARK. 

